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Date:   Fri,  8 May 2020 15:32:10 -0700
From:   Florian Fainelli <>
        Florian Fainelli <>,
        "David S. Miller" <>,
        Thomas Gleixner <>,
        Tal Gilboa <>,
        Michael Chan <>,
        Geert Uytterhoeven <>,
        Andy Gospodarek <>,
        Randy Dunlap <>, (open list)
Subject: [PATCH net] net: broadcom: Imply BROADCOM_PHY for BCMGENET

The GENET controller on the Raspberry Pi 4 (2711) is typically
interfaced with an external Broadcom PHY via a RGMII electrical
interface. To make sure that delays are properly configured at the PHY
side, ensure that we get a chance to have the dedicated Broadcom PHY
driver (CONFIG_BROADCOM_PHY) enabled for this to happen.

Fixes: 402482a6a78e ("net: bcmgenet: Clear ID_MODE_DIS in EXT_RGMII_OOB_CTRL when not needed")
Reported-by: Marek Szyprowski <>
Signed-off-by: Florian Fainelli <>

I would like Marek to indicate whether he is okay or not with this
change. Thanks!

 drivers/net/ethernet/broadcom/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/broadcom/Kconfig b/drivers/net/ethernet/broadcom/Kconfig
index 53055ce5dfd6..8a70b9152f7c 100644
--- a/drivers/net/ethernet/broadcom/Kconfig
+++ b/drivers/net/ethernet/broadcom/Kconfig
@@ -69,6 +69,7 @@ config BCMGENET
 	select BCM7XXX_PHY
 	select DIMLIB
+	imply BROADCOM_PHY if ARCH_BCM2835
 	  This driver supports the built-in Ethernet MACs found in the
 	  Broadcom BCM7xxx Set Top Box family chipset.

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